Radio 1 breakfast DJ Nick Grimshaw's BBC3 panel show, Sweat the Small Stuff, debuted with just over 400,000 viewers.

BBC3 has high expectations for Grimshaw's panel show, also featuring Kiss FM presenters Rickie and Melvin and Rochelle Humes of the Saturdays, which it hopes could become a fixture of the schedules.

But with 427,000 viewers, a 2.3% share, it was 20% down on BBC3's slot average over the past three months.

No, not the band

TLC, the new female-skewed channel from Discovery, launched in the UK last night with a lineup of shows that included Undercover Mums, with Dawn O'Porter, and Lisa Snowdon's Your Style in His Hands.

Its most popular shows included documentary Breaking Amish, about a group of Amish people moving to New York, which drew 187,000 viewers, a 0.8% share, between 9pm and 10pm.

At the same time on BBC4, Archaeology: A Secret History, presented by Dr Richard Miles, began with 753,000 viewers (3.2%).

BBC2's Keeping Britain Alive: the NHS in a Day, pulled in 1.7 million viewers, a 7.4% share, also at 9pm, ahead of Channel 4's World's Weirdest Weather, which drew 1.3 million viewers (5.6%).

Earlier on BBC2, Alex Polizzi – the Fixer Returns was back for the first of a two-part catchup with 2 million viewers, an 8.8% share, between 8pm and 9pm.

All ratings are Barb overnight figures, including live, +1 (except for BBC channels) and same day timeshifted (recorded) viewing, but excluding on demand, or other – unless otherwise stated. Figures for BBC1, ITV, Channel 4 and Channel 5 generally include ratings for their HD simulcast services, unless otherwise stated

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